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Question
3 tan-1 a is equal to ____________.
Options
`"tan"^-1 ((3"a" + "a"^3)/(1 + 3"a"^2))`
`"tan"^-1 ((3"a" - "a"^3)/(1 + 3"a"^2))`
`"tan"^-1 ((3"a" + "a"^3)/(1 - 3"a"^2))`
`"tan"^-1 ((3"a" - "a"^3)/(1 - 3"a"^2))`
MCQ
Fill in the Blanks
Solution
3 tan-1 a is equal to `underline("tan"^-1 ((3"a" - "a"^3)/(1 - 3"a"^2)))`.
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